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Finding the Fourth Proportional to 73,203.42, 101,020.65 and 39,669.42

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Solution

The fourth proportional to 73,203.42, 101,020.65 and 39,669.42 is: 54,743.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,203.42 : 101,020.65 = 39,669.42 : x
  2. Step 2: Convert to fraction form
    73,203.42/101,020.65 = 39,669.42/x
  3. Step 3: Cross multiply
    73,203.42x = 101,020.65 × 39,669.42
  4. Step 4: Simplify right side
    73,203.42x = 4,007,430,593.52
  5. Step 5: Solve for x
    x = 4,007,430,593.52/73,203.42
  6. Step 6: Final answer
    x = 54,743.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.